# leapmotion/ProjectNorthStar

The open-source files comprising Leap Motion's Project North Star AR Headset.

Repository: https://github.com/leapmotion/ProjectNorthStar
Canonical: https://ross.abutalabs.com/products/projectnorthstar
Homepage: https://leapmotion.github.io/ProjectNorthStar/
Language: C
License: GPL-3.0
License Family: copyleft
Last push: 2025-10-15T10:40:32+00:00

## Health v2 (maintenance only)
Score: 53/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 47, release rhythm 35, longevity 100
- inputs: {"age_days": 3012, "days_push": 322, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1787, forks 277 (observed 2026-08-28T04:05:36.062576+00:00)

## What it is
Open-source reference design for Leap Motion's Project North Star augmented reality headset, including mechanical CAD, electrical designs, and calibration software. It provides build guides for fabricating an inexpensive AR headset using off-the-shelf and 3D-printed parts with ultra-wide hand tracking.

## Use cases
- build my own AR headset
- open source augmented reality hardware design
- calibrate a North Star AR headset
- 3D print AR headset parts
- hand tracking AR prototype
- learn how AR optics and reflectors work

## When to choose
- you want to physically build a DIY AR headset with 3D-printed parts
- you need open reference designs for AR optics, displays, and hand-tracking integration
- you are experimenting with AR hardware research or education

## When to avoid
- you need a polished consumer AR product or complete AR software stack
- you cannot fabricate custom components like reflectors or display driver boards
- you want a passive software-only library without hardware assembly

## Facets
- artifact type: application
- maturity: maintenance
- function: graphics, simulation, computer-vision, developer-tools
- domain: hardware, computer-vision, graphics, developer-tools
- platform: windows, cpp, c, cross-platform
- tags: ar-headset, open-hardware, augmented-reality, hand-tracking, 3d-printing, diy-hardware

## Member repositories
- leapmotion/ProjectNorthStar (main) score 53

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:36.062576+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:23:29.388402+00:00, confidence not recorded.
  - readme: https://github.com/leapmotion/ProjectNorthStar (fetched 2026-08-28T04:05:36.062576+00:00, sha 1fa92fc4d365)
  - homepage: https://leapmotion.github.io/ProjectNorthStar/ (fetched 2026-08-29T11:02:22.164713+00:00, sha 41370073f570)
- Data as of 2026-08-30T08:39:29.467469+00:00.